linux user group brescia

Ciao a tutti,
Devo imparare a usare le librerie Qt, e dopo essermi letto il whitepaper, sto seguendo il tutorial #1.
Problema: dopo aver copiato il file, tento di compilarlo, dicono di eseguire:
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qmake -project
qmake
make
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qmake -project: ok, mi genera qt.pro
qmake: ok, mi genera Makefile
make: ahi, questo mi ritorna questo errore:

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server1950:/opt/apps/qt # make
g++ -c -pipe -O2 -fmessage-length=0 -Wall -D_FORTIFY_SOURCE=2 -g -DUSE_LIB64_PATHES -fno-strict-aliasing -Wall -W -O2 -fmessage-length=0 -Wall -D_FORTIFY_SOURCE=2 -g -DUSE_LIB64_PATHES -fno-strict-aliasing -DQT_NO_DEBUG  -I/usr/lib/qt3/mkspecs/default -I. -I. -I/usr/include -I/usr/lib/qt3/include -o main.o main.cpp
g++  -o qt main.o    -L/usr/lib64/ -L/usr/X11R6/lib64/ -lXext -lX11 -lm
main.o: In function `main':
/opt/apps/qt/main.cpp:8: undefined reference to `QApplication::QApplication(int&, char**)'
/opt/apps/qt/main.cpp:10: undefined reference to `QString::QString(char const*)'
/opt/apps/qt/main.cpp:10: undefined reference to `QPushButton::QPushButton(QString const&, QWidget*, char const*)'
main.o: In function `~QString':
/usr/lib/qt3/include/qstring.h:847: undefined reference to `QString::shared_null'
/usr/lib/qt3/include/qstring.h:848: undefined reference to `QStringData::deleteSelf()'
main.o: In function `main':
/opt/apps/qt/main.cpp:11: undefined reference to `QPushButton::resize(int, int)'
/opt/apps/qt/main.cpp:13: undefined reference to `QApplication::setMainWidget(QWidget*)'
/opt/apps/qt/main.cpp:14: undefined reference to `QWidget::show()'
/opt/apps/qt/main.cpp:15: undefined reference to `QApplication::exec()'
/opt/apps/qt/main.cpp:15: undefined reference to `QPushButton::~QPushButton()'
/opt/apps/qt/main.cpp:15: undefined reference to `QApplication::~QApplication()'
main.o: In function `~QString':
/usr/lib/qt3/include/qstring.h:847: undefined reference to `QString::shared_null'
/usr/lib/qt3/include/qstring.h:848: undefined reference to `QStringData::deleteSelf()'
main.o: In function `main':
/opt/apps/qt/main.cpp:15: undefined reference to `QApplication::~QApplication()'
/opt/apps/qt/main.cpp:15: undefined reference to `QPushButton::~QPushButton()'
main.o:(.rodata._ZTV6QGList[vtable for QGList]+0x18): undefined reference to `QGList::clear()'
main.o:(.rodata._ZTV6QGList[vtable for QGList]+0x20): undefined reference to `QGList::~QGList()'
main.o:(.rodata._ZTV6QGList[vtable for QGList]+0x28): undefined reference to `QGList::~QGList()'
main.o:(.rodata._ZTV6QGList[vtable for QGList]+0x30): undefined reference to `QPtrCollection::newItem(void*)'
main.o:(.rodata._ZTV6QGList[vtable for QGList]+0x40): undefined reference to `QGList::compareItems(void*, void*)'
main.o:(.rodata._ZTV6QGList[vtable for QGList]+0x48): undefined reference to `QGList::read(QDataStream&, void*&)'
main.o:(.rodata._ZTV6QGList[vtable for QGList]+0x50): undefined reference to `QGList::write(QDataStream&, void*) const'
main.o:(.rodata._ZTI6QGList[typeinfo for QGList]+0x10): undefined reference to `typeinfo for QPtrCollection'
collect2: ld returned 1 exit status
make: *** [qt] Error 1
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ho gogglato un pò in giro, ma ho trovato solo roba antica (1997, 1998) o gente con problemi di compilatori.
Ah dimenticavo, ho Suse 10.1, e ho provato anche su un pc con Suse 9.3 ma ritorna più o meno lo stesso errore.
Qualcuno sa dirmi cosa c'è che non va?